Machine for making laminated counter blanks and other articles



1929- B. F. HARTWELL MACHINE FOR MAKING LAMINATED COUNTER BLANKS ANDOTHER ARTICLES Filed Jan. 29, 1929 2 Sheets-Sheet fenjammjflkriwii. I

Dec. 17, 1929. s. F. HARTWELL. 1,739,670

I MACHINE FOR MAKING LAMINATED COUNTER BLANKS AND OTHER ARTICLES FiledJan. 29, 1929 2 Sheets-Sheet 2 fwwm;

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Patented Dec. 17, 1929 STATES PATENT OFFICE MACHINE FOR MAKING LAMINATEDCOUNTER BLANKS AND OTHER ARTICLES Application filed January 29, 1929.Serial No. 335,953.

The object of this invention is to provide a machine whereby an operatormay quickly and conveniently assemble layers of sheet material, andcause cement applied to two or more of said layers to adhesively unitethe layers and thereby produce a laminated arti ole which may be, forexample, a blank adapted-to be molded into heel counter form by asubsequent operation.

Of the accompanying drawings forming a part of this specification,-

Figure 1 is a perspective view of a machine embodying the invention.

Figure 2 shows in perspective a laminated blank producible by themachine, the layers at one end of the blank being separated from eachother.

Figure 3 is a much enlarged section on line 3-3 of Figure 2.

Figure 4 is a front elevation of the machine, parts shown by Figure 1being omitted.

Figure 5 is a section on line 55 of Figure 4, showing parts omitted fromFigure 4, the pressing beds hereinafter described being in theirreceiving positions.

Figure 6 is a view similar to Figure 5, omitting the treadle, andshowing the beds in their pressing positions.

Figure 7 is. an enlargement of a portion of Figure 6.

Figure 8 is a fragmentary perspective view, showing certain details.

The same reference characters indicate the same parts in all of thefigures.

I will now describe the machine as organized to produce counter blanks.It will be obvious, however, that the machine may be organized toproduce other laminated articles.

The machine comprises a pair of pressing beds 12, having perforations13, and constituting members of suction boxes, the air spaces of whichare designated by 14, the beds forming side walls of the box. Edge andend walls of the boxes may be formed by marginal enlargements 15, formedon the beds, and the boxes may be completed by side walls 16 and packinggaskets 17 all as shown by Figure 7.

It is obvious that suction boxes communi eating with the perforations 13of the beds may be otherwise provided. Said perforations permit theconfinement of blank layers on the beds by atmospheric pressure, whenair is exhausted from the boxes, as hereinafter described.

Hinges are provided connecting the beds with fixed supporting means,such as frame members 18, fixed to a bench 19, suitably elevated above afioor. In this instance, the hinges include hinge socket members 20,formed on adjacent edges of the beds, and a hinge pintle member 11,secured to the frame members 18, and extending through the socketmembers 20, the arrangement being such that the hinges permit the bedsto alternately occupy the receiving positions shown by Figures 1, 4 and5, and the pressing positions shown by Figures 6 and 7 Each bed isprovided with registration means for locating a blank layer 21 thereon,in position to register with another layer 21 on the other bed, when thebeds are moved to their pressing positions. In this instance,

I have embodied the registration means in straight outwardly facinglongitudinal shoul ders 22, adjacent the inner edges of the beds, eachshoulder being provided with a projection 23, formed to enter a notch 24(Figure 2) in the straight edge of each of the blank layers.

Air may be exhausted from the suction boxes by any suitable means, tocause the adhesion to the perforated beds of blank layers 21 depositedthereon by an operator. In this instance, I have embodied said means ina vacuum pump 25, shown conventionally by Figure 1, and aconduitconnecting the air intake of the pump with the suction boxes,

said conduit including a rigid section 26, and two flexible sections 27connecting the section 26 with the boxes, the sections 27 being ofsuflicient length and flexibility to permit movement of the beds fromeach of the positions shown to the other.

The machine comprises operating mechanism{ whereby foot or other powermay be exerted on the beds to move them from their receiving to theirpressing positions. Said mechanism is. preferably embodied in a lever10c 29, fulcrumed between its ends on a fixed support, such as a rod 30,fixed at its'ends to the frame members 18, one of said ends being shownby Figure 8, the portion of said lever at opposite sides of the fulcrumconstituting an inner and an outer arm, powerapplying means, such as atreadle lever 31, pivoted to a fixed ear 31 below the bench 19, andconnected by a rod 32 with the inner arm of the lever 2,9,anda pair ofconnecting links 33, pivoted at 34 to the outer arm of the lever 29, andpivotally connected withthe pressing beds, preferably by ears 35, formedon the suction box walls 16, and pivots 35 connecting said ears with thelinks.

The outer arm of the lever 29 and the links 33'constitute a three-parttoggle, adapted to.

be made active as shown by Figure 6, to force the beds to their pressingpositions, and inactive, as shown by Figure 5, to permit the beds toassume their receiving positions.

WVhen the toggle is inactive, it constitutes an element of means forsupporting the beds normally in their receiving positions, anotherelement of said means being a pad 36, pref- "erably of leather, fixed tothe bench 19, and

constituting a stop which limits the clownward movement of the toggleand the beds. The machine may be operated by an operator standing besideit, who deposits a layer 21on each bed, the beds beingintheir receivingpositions. The layers are immediately caused by atmospheric pressure toadhere to the beds, and are then'coated on the uppersides with cement.An intermediate layer 21 is then placed on one of the secured layers andcaused to adhere thereto by the cement coating. The

beds are then moved to their pressing positions and'press together thelayers thereon, so thatlthey are unitedby thecement coating andconstitute a laminated blank, which is removable when the treadle 31 isreleased and the beds are returned to their receiving posi tions bygravity'or by a pulling-down spring sectional view (Figure 3), thelayers 21 being too thin to be skived.

The completed blank has a straight edge 40 (Figure 2), which is theedge'of the counter flange, subsequently formed fromthe blank, and acurvededge 41, which is the upperedge of the formed counter body. It isdesirable that the marginal portions of the layers which collectivelyform the curved edge 41,

treatment, and the layers composing said edge may wellbe left 'in thecondition indicated by Figure 3.

Theplate 42 may be detachably secured, as by screws, to the bed by whichit is carried, so that it may be removed when its use is not required,or replaced by another plate differently formed. i

I claim: a V

,1. An assembling machine for making laminated articles, comprising apair ofperforated beds, each constituting a member of a suction box,means connecting said beds -eo with fixed supporting means, and adaptedto permit the beds to alternately occupy receiving and pressingpositions, each bed having registration means for locating a layerthereon in position to register with a'layer' on the other bed,air-exhausting means communicating with the suction boxes to causeadhesion of the layers to the beds, and operating mechanism for swingingthe beds from ,x

1 I 7 I r: their recelvmg to their pressing Pos1t n to press togethercement coated layer r ,riedby the beds, means being provided forsupporting the ,beds normally in their receiving positions. 7 m

2. An assembling'machine asspecified by" 05 claim 1, the registrationmeans of eachjbed being embodied in an outwardly facing longitudinal.shoulder adjacent the inner edge of the bed, provided with a projectionformed k to enter a notch in the inner edge of a layerlaid on thebed.

, 3. An assembling machine as specified by claim 1, one of said bedshaving a pressing face formed to transversely incline a longitudinaledge portion of a layer carried by" said bed.

4. An assembling machine as specified by claim 1, the operatingmechanism being em, bodied in a lever fulcrumed between its ends on afixed support and having inner and 1 20 outer arms, power-applying meansconnected with the inner arm, and a pair of connecting links pivoted tothe outer arm of the lever and pivotally connected with the beds, the.outer lever arm and the connecting links constituting a three-parttoggle, adapted to be made active to force the beds to their pressingpositions, and inactive to permit the beds to assume their receivingpositions.

5. An assembllng machine as specified by claim 1, the said operatingmechanism being embodied in a lever fulerumed between its ends on afixed support and having inner and outer arms, power-applying meansconnected With the inner arm, and a pair of connecting links pivoted tothe outer arm of the lever and pivotally connected with the beds, theouter lever arm and the connecting links constituting a three-parttoggle, adapted to be made active to force the beds to their pressingpositions, and inactive to permit the beds to assume their receivingpositions, the machine comprising also a fixed stop adapted to cooperatewith the said tog- I gle in supporting the beds normally in theirreceiving positions.

In testimony whereof I have afiixed my slgnature.

BENJAMIN F. HARTWELL.

